how to predict time series data

I have a time series of electromagnetic wave of 2000 values and i want to predict next 100 values of the Electromagnetic wave

[Adam Danz]

There isn't a one-size-fits-all approach to predicting timeseries data, especially with stock prices. All it takes is a COVID-19 outbreak or a tweet from the a powerful influencer to create sudden changes to stock prices.

This wiki page does a decent job at summarizing some methods.

https://en.wikipedia.org/wiki/Stock_market_prediction#Prediction_methods

[Akira Agata]

I believe the following Econometrics Toolbox example page would be some help.

https://jp.mathworks.com/help/econ/examples.html